Alkenone-based formulations for topical applications

Abstract

The use of long-chain alkenones to impart desired characteristics in personal care compositions for topical applications is described. The preparation of mixtures long-chain alkenones and synthetic derivatives thereof is presented. Examples of compositions include abrasive soaps, with alkenones serving as natural exfoliating agents. Alkenones and their derivatives can serve as emollients, occlusive agents, encapsulating agents, stabilizing agents, binding agents, thickening agents, surfactants, and antimicrobials.

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows: 
     
       1. A personal care composition, comprising:
 a compound of Formula (I): 
 
       
         
           
           
               
               
           
         
         wherein; 
         R 1  is methyl or ethyl; and 
         R 2  is a C 30-45  alkenyl having at least one trans double carbon-carbon bond, or R 2  is a C 30-45  alkyl; 
         provided that the compound of Formula (I) is not 
       
       
         
           
           
               
               
           
         
       
       wherein the composition does not comprise acylglycerols. 
     
     
       2. The personal care composition of  claim 1 , wherein the composition does not comprise carotenoids and chlorophylls. 
     
     
       3. The personal care composition of  claim 1 , wherein the composition does not comprise a total algae lipid extract. 
     
     
       4. The personal care composition of  claim 1 , wherein the compound of Formula (I) is present in an amount of from 5% to 35% w/w of the composition. 
     
     
       5. The personal care composition of  claim 1 , wherein R 2  is a C35-45 alkenyl having at least one trans double carbon-carbon bond. 
     
     
       6. The personal care composition of  claim 1 , wherein R 2  has 2 to 4 trans double carbon-carbon bonds. 
     
     
       7. The personal care composition of  claim 1 , further comprising a synthetic agent selected from synthetic solubilizing agents, synthetic emulsifying agents, synthetic humectants, synthetic emollients, synthetic occlusive agents, synthetic surfactants, synthetic preservatives, synthetic binding agents, synthetic thickeners, synthetic solvents, synthetic fragrances, and any combination thereof. 
     
     
       8. The personal care composition of  claim 1 , further comprising a naturally occurring agent selected from natural emollients, natural occlusive agents, natural emulsifying agents, natural anti-oxidants, natural colorants, natural fragrances, and any combination thereof. 
     
     
       9. A personal care composition, comprising:
 1 to 50% weight of a compound of Formula (I): 
 
       
         
           
           
               
               
           
         
         wherein 
         R 1  is methyl or ethyl; and 
         R 2  is a C 30-45  alkenyl having at least one trans double carbon-carbon bond, or R 2  is a C 30-45  alkyl; 
         provided that the compound of Formula (I) is not 
       
       
         
           
           
               
               
           
         
       
       wherein the composition does not comprise acylglycerols. 
     
     
       10. The personal care composition of  claim 9 , wherein the composition does not comprise carotenoids and chlorophylls. 
     
     
       11. The personal care composition of  claim 9 , wherein the composition does not comprise a total algae lipid extract. 
     
     
       12. The personal care composition of  claim 9 , wherein the compound of Formula (I) is present in an amount of from 5% to 35% w/w of the composition. 
     
     
       13. The personal care composition of  claim 9 , wherein R 2  is a C35-45 alkenyl having at least one trans double carbon-carbon bond. 
     
     
       14. The personal care composition of  claim 9 , wherein R 2  has 2 to 4 trans double carbon-carbon bonds. 
     
     
       15. The personal care composition of  claim 9 , further comprising a synthetic agent selected from synthetic solubilizing agents, synthetic emulsifying agents, synthetic humectants, synthetic emollients, synthetic occlusive agents, synthetic surfactants, synthetic preservatives, synthetic binding agents, synthetic thickeners, synthetic solvents, synthetic fragrances, and any combination thereof. 
     
     
       16. The personal care composition of  claim 9 , further comprising a naturally occurring agent selected from natural emollients, natural occlusive agents, natural emulsifying agents, natural anti-oxidants, natural colorants, natural fragrances, and any combination thereof.